100% Casein Protein (Optimum Nutrition)

User rating

3.8

out of 5

1567 user reviews

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Format	Store	Notes	Price/serving	Price
4 lb	A1Supplements.com	Shipping: Calculated by weight Save $5 on orders > $90: Code - 5OFFA1 Free gift with orders > $90 Save 4% on orders > $200 Save 8% on orders > $500	$0.74	$42.95
4 lb	I'll Pump You Up	5% off any order: Code - SubstanceReviews	$0.74	$42.95
4 lb	Bodybuilding.com	Shipping: Flat rate - $5.99 (up to 40 lb) 5% off new customers: Code - NewCustomer5PerOff Other coupon codes on the left side of this page	$0.77	$44.89

Sometimes slower is better - especially when it comes to the rate of protein digestion. While rapid protein absorption is desirable immediately before or after exercise, delayed release is probably more beneficial throughout the remainder of the day.

Casein proteins are pH sensitive and gel in the acidic environment of the stomach. As a result, it can take more than twice as long for caseins to be broken-down into their amino acid sub components than whey and other proteins. Because of these unique "time-released" qualities, caseins are aptly described as being anti-catabolic, or muscle-protecting, proteins.

Average user rating from: 1567 users


Overall rating		3.8
Euphoria (4 ratings)		3.9
Mental energy (1 rating)		1.0
Focus (1 rating)		0.5
Length of effects (1 rating)		5.0
Low development of tolerance (1 rating)		1.0
Low dependence (1 rating)		1.0
Fat loss (22 ratings)		4.4
Vascularity (3 ratings)		2.2
Pump (4 ratings)		4.0
Thermogenic effect (2 ratings)		3.5
Texture (468 ratings)		4.0
Muscle gain (66 ratings)		4.4
Strength (21 ratings)		3.8
Taste (1386 ratings)		4.2
Mixes well (402 ratings)		4.3
Safety (5 ratings)		5.0
Suppressed appetite (19 ratings)		3.9
Recovery ability (81 ratings)		4.7
Anti-catabolic (37 ratings)		4.7
Endurance (6 ratings)		3.6
Low side effects (2 ratings)		3.0
Physical energy (11 ratings)		4.2
Value for money (125 ratings)		4.3
Ingredient profile (39 ratings)		4.5

Reported side effects (adverse events)


Diarrhea	4 users (0%)
Difficulty sleeping	2 users (0%)
Gas or bloating	7 users (0%)
Nausea or vomiting	4 users (0%)
Shakes	7 users (0%)
Upset stomach	5 users (0%)

Find other supplements effective for

Muscle gain


Texture		Is what I think everytime I see that blue bottle and remember the thick nasty taste.
Taste		Is what I think everytime I see that blue bottle and remember the thick nasty taste.


Taste		I like the taste and it's results.
Taste		It taste like the mint chocolate chip ice cream so if you don't like that flavor you may want to steer clear


Taste		Probably my favorite casein and flavor of it ever.
Taste		Tastes exactly like ice cream.


Taste		I just wish that ON works the taste and mixability of this product.
Mixes well		I just wish that ON works the taste and mixability of this product.


Pump		Really helped keep protein pumping through me when I slept and filled me up when I wasn't eating.
Taste		Taste wasn't the best and it didn't mix that great,


Taste		ON casein (creamy vanilla) is very helpful specially before sleeping for whole night musscle recovery ... i mix it with my banana shake and it gives my good taste ... i recommend this product...!!
Recovery ability		ON casein (creamy vanilla) is very helpful specially before sleeping for whole night musscle recovery ... i mix it with my banana shake and it gives my good taste ... i recommend this product...!!


Taste		but good things to say, tastes great, noticeably slower digesting and great before bed or in between meals.
Taste		I mix a couple scoops of this with a half scoop of the coffee 100% gold standard whey just for taste and its probably one of my favourite drinks.


Strength		They help me attain the amount of protein (1.25g/ pound) that by experience I know I need to progress in my powerlifting training.
Taste		They taste great, both the vanilla and chocolate.
Mixes well		These proteins mix just fine with no clumping when I put them in a two quart jug with water and shake.


Taste		Flavor isn't going to be as good as other proteins BECAUSE ITS A CASSEIN!!! Have you all tried other casseins??? Cassein is discusting in general and ON has made it easier to cope with.
Taste		Just mix it with some greek yogurt and it makes a nice flavored pudding.


Taste		This is one of the best tasting chocolate casein flavors that I have found and I find myself going back to it over and over.
Taste		Yum.


Texture		If I have enough time I will usually mix it up with water and/or almond milk in a bowl for a nice pudding consistency.
Taste		By far the best flavor is chocolate supreme.


Texture		Mixes well, great taste, not gritty or clumpy.
Taste		Mixes well, great taste, not gritty or clumpy.
Mixes well		Mixes well, great taste, not gritty or clumpy.


Texture		Seems a little thicker than other brands, so I use more almond milk to give it a better consistency.


Taste		This tasted awful!
Taste		I never have that problem that powder and Pro Jym tastes much better.


Texture		Good nuetral flavor to have to use in smoothies and what not.
Taste		Great protein, good flavors.
Taste		Blueberries & Cream - Taste like drinking a blueberry muffin, just awesome.
Taste		Chocolate Cake Batter - I really thought this tastes like a milkshake or something.
Taste		but great taste and mixes well.
Taste		Good nuetral flavor to have to use in smoothies and what not.
Mixes well		Little bit harder to mix in a shaker without a few clumps
Mixes well		but great taste and mixes well.


Taste		There are a few other brands that might taste better
Value for money		It is a little pricey for protein however.


Texture		Texture is a little on the chalky side,
Taste		but the taste was great.

100% Casein Protein (Optimum Nutrition)

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